But is it worth it if we are finding out it creates life threatening health issues?

I'm going to go a bit extreme here and say yes. Life involves risks, we don't live in a bubble. Everytime a race car driver goes 300 mph, he risks his life for our entertainment and its up to him to decide if that is worth his risk or not. Just like hockey players, take Ryan White for example, its his choice, he can either be talented enough to make the team on his own talents, and if he can't, its his choice to take up fighting.

That is the great thing about our society, people are free to make their own choices. Maybe we should ban hitting from hockey because it threatened MaxPac's life when Chara hit him, or because its broken the necks of players as well.

The question is, where do you draw the line? Fighting is already banned in hockey, you get a penalty for fighting.

Hockey is just a rougher sport than baseball, hence more fights. Baseball doesn't have automatic suspensions for players who fight, in fact, baseballl is probably more "pro fighting" in the sense that they don't have set penalties for fighting and players can go unpunished for fighting.